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121422060 = 2232523139211
BaseRepresentation
bin1110011110011…
…00000011101100
322110110212202100
413033030003230
5222041001220
620014255100
73003033114
oct717140354
9273425670
10121422060
11625a3211
12347b7490
131c204296
14121aa044
15a9d6d90
hex73cc0ec

121422060 has 144 divisors (see below), whose sum is σ = 388926720. Its totient is φ = 30602880.

The previous prime is 121422031. The next prime is 121422061. The reversal of 121422060 is 60224121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121422061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 575355 + ... + 575565.

It is an arithmetic number, because the mean of its divisors is an integer number (2700880).

Almost surely, 2121422060 is an apocalyptic number.

121422060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121422060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194463360).

121422060 is an abundant number, since it is smaller than the sum of its proper divisors (267504660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121422060 is a wasteful number, since it uses less digits than its factorization.

121422060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 121422060 is about 11019.1678451687. The cubic root of 121422060 is about 495.1831584213.

Adding to 121422060 its reverse (60224121), we get a palindrome (181646181).

The spelling of 121422060 in words is "one hundred twenty-one million, four hundred twenty-two thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 30 36 45 46 60 69 90 92 115 138 139 180 207 211 230 276 278 345 414 417 422 460 556 633 690 695 828 834 844 1035 1055 1251 1266 1380 1390 1668 1899 2070 2085 2110 2502 2532 2780 3165 3197 3798 4140 4170 4220 4853 5004 6255 6330 6394 7596 8340 9495 9591 9706 12510 12660 12788 14559 15985 18990 19182 19412 24265 25020 28773 29118 29329 31970 37980 38364 43677 47955 48530 57546 58236 58658 63940 72795 87354 87987 95910 97060 115092 117316 143865 145590 146645 174708 175974 191820 218385 263961 287730 291180 293290 351948 436770 439935 527922 575460 586580 674567 873540 879870 1055844 1319805 1349134 1759740 2023701 2639610 2698268 3372835 4047402 5279220 6071103 6745670 8094804 10118505 12142206 13491340 20237010 24284412 30355515 40474020 60711030 121422060